So I was sitting in the pub (with my back to the wall), and this guy
came up and said "Oh Mr. Pass, I don't like your volume control - when
I turn the knob it makes a sound like a zipper."
"Sonny," I said, "When I was young, that was exactly the sound we
were looking for."
I bought a 23-step attenuator with SMD resistors off ebay and the listing headline from vendor in Taiwan mentioned Pass 1.7 type. In my ignorance [read as bliss] I had no idea that the zipper was part of the mechanical concept.
I find there is too much physical resistance to this particular zipper.
I have it disassembled at the moment and it would appear that if I remove the front shaft clip I can further disassemble the mechanical mechanism part of it and I wonder if I can change the spring to one with less tension to improve the feel. Ya...that's the ticket!
...what I want for 25 bucks?
"...are ya hungry for me mon? ....zip" 😀😱
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Yo. Carpenter and Wirewigglers amps are shown in the BAF09 coverage in audioExpress.
You guys are now famous.
You guys are now famous.
Member
Joined 2002
Member
Joined 2002
U talking about this one ?
DACT Type 21 Stepped Attenuator 20K FOR PASS B1 DIY - eBay (item 120502791204 end time Jan-05-10 09:17:39 PST)
An externally hosted image should be here but it was not working when we last tested it.
No, I bought this one. The heading of the auction I bought mentioned Pass1.7 but I see now they no longer do. Whether this one I've linked to has the clicking step action I don't know.
VALAB 23 Step Attenuator Potentiometer 20K Stereo Log on eBay.ca (item 290376481970 end time 31-Dec-09 15:24:21 EST)
boyz - you are nutz ?
what you intend with these technical issues in this thread ?
nobody sane will even stick his nose here ..........
what you intend with these technical issues in this thread ?
nobody sane will even stick his nose here ..........
Member
Joined 2002
boyz - you are nutz ?
what you intend with these technical issues in this thread ?
nobody sane will even stick his nose here ..........
lol, but you just did 🙂
Member
Joined 2002
nope - I'm hopeless
nobody take me serious , and I'm first on that list .......
we all do, you = smrt 😛 ( bart simpson )
you need to deform spring with pliers to make it less forceful
then put some grease in mech , and Voilla
matter of personal taste , in fact - but - if you are searching for soul of the Music , you have two most prominent choices ;
both are completely valid , just different ... and both are superior to any common type pot .
one is ( nota benne - not first) Lightspeed type of attenuator
other one ( nota benne- not second) is transformer based attenuator ( sub types are autotransformer (AVC) or transformer (TVC) ; first is one coil with taps , second one is primary+secondary with taps) .
in both cases buffers on output are must in 90% of cases , except when cables to amp are 100% benign as load and amp is of highish input impedance , presuming that you don't have any active gain stage between attenuator and power amp .
off course - these attenuators are beneficiary as substitution for any attenuator , be it stand-alone or implemented in any active gadget .
I have TKD 4 deck pot (kwayzee 250++ Euro jobie , geschenk from my man Manu) , as part of my selector/volume box , but that Drek is inferior to AVC/TVC or bufferless PSM LS .
naturally - YMM&MV
Heavyweight amp? Everyone needs a gimmick, yes?
Thanks for posting those pics. I'm going to get a year subscription just because they were nice enough to post a pic of something I made.
Thanks for posting those pics. I'm going to get a year subscription just because they were nice enough to post a pic of something I made.
Ya. Tanks!
A little spring in our step...
zippers and lube..and pie...make life good. 😀... pie for all!
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Member
Joined 2002
I thought about the Lightspeed Kit for the pre-amp volume pot,, but i thought it would be Pricey$$$ to get one going.
I really REALLY liked the sound of the Alps black beauty when we ran it in passive mode with 2 aleph mini amp's and a nice cd player, it was simple clean and just amazing, that is what hooked me on the passive pot im running now.
Jase
I had a different solution to that very same stepped attenuator. A big volume knob. It is still a bit clickitty click, but it matches the input selector and moves plenty easy.
